avm2: Support recursive Vector<Vector<T>> lookups #24478

Job	Run time
Paths filter	7s
Check dependencies	1m 25s
Lints with Rust stable	4m 25s
Lints with Rust beta	4m 2s
Test Rust ${{ matrix.rust_version }} / ${{ matrix.os }}	0s
Test Rust stable / ubuntu-22.04	5m 21s
Lints with Rust nightly	4m 8s
Test Rust stable / windows-latest	9m 50s
Test Rust stable / macos-14	4m 23s
Test Rust nightly / ubuntu-22.04	9m 12s
Test Rust beta / ubuntu-22.04	5m 0s
	47m 53s

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